-_- i said it 1000 times already ..
You can't counterpunch on clay ... everyone who had played the game and have simple sence of tennis and has common logic knows this ... For instance: Simon , Hewitt ......
and last but not least Murray thrives on his opponents power ! and his swings are short and rely on timing ... THE END/FIN/KONEC ! Deal with it you low tennis IQ-ers

This is the truth, there is no need to debate the issue any further.

All things are subject to interpretation whichever interpretation prevails at a given time is a function of power and not truth.

He did not grow up on clay, that's a misconception. He spent 2 years in Barcelona. He grew up on hard courts.

With his movement being one of his key strengths, he doesn't do well on clay, because he is unable to slide into his shots. His forehand is also not potent enough to hit through the court on a regular basis. Obviously, confidence goes a long way as well.